Updated stoichiometry analysis  - now uses numpy rather than to-be deprecated scipy functions  - identified and added user warning that mysterious error 766 has occured (see #65)
Updated stoichiometry analysis
 - now uses numpy rather than to-be deprecated scipy functions
 - identified and added user warning that mysterious error 766 has occured (see #65)

PySCeS/pysces,PySCeS/pysces